Answer:
A
Step-by-step explanation:
Ortiz used similar triangles to make a design. Which statement about the triangles in the design must be true? They are the same size and shape.
40z + 5 = 45z - 90
Help plz
Answer:
45z-40z=5+90
5z=95
z=95/5
z=19
What is the value of the expression below when x=4 2x^2+x-5
Pls help me I don’t understand this!!! Happy new year everyone.
ill mark brainliest!!
Answer:
$60
Step-by-step explanation:
So from the question, we need to find the fixed amount for the tv's. So we have to make an equation, and don't forget to add the extended warranties:
11(x + 25) = 935
x will represent a tv, and the 25 is the extended warranty for a tv, since the questions states 11 tv's with warranties is 935, the equation will look like that. Now lets slove:
11(x + 25) = 935
multiply
11x + 275 = 935
subtract 275 from both sides
11x = 660
divide both sides by 11
x = 60, each tv is $60
A line with a slope of 5 passes through the point (2, 5). What is its equation in
slope-intercept form?
Answer:
y = 5x - 5Step-by-step explanation:
slope-intercept form of equation: y = mx + b
where m is slope and b is y-intercept
If line y=ax+b passes through point (x₀,y₀) that means
that the equation y₀=ax₀+b is true
(2, 5) ⇒ x=2, y=5
m = 5
So:
5 = 5×2 + b
5 = 10 + b
b = -5
Therefore equation in slope-intercept form:
y = 5x + (-5)
y = 5x - 5
The equation of the line in slope-intercept form is y = 5x - 5.
Given that the slope of the line is 5 and it passes through the point (2, 5), we can use the point-slope form of a linear equation to find the equation of the line.
The point-slope form is given by:
y - y1 = m(x - x1),
where (x1, y1) is the given point and m is the slope.
Substituting the values, we have:
y - 5 = 5(x - 2).
Now, let's simplify this equation:
y - 5 = 5x - 10.
Next, let's isolate y:
y = 5x - 10 + 5.
Simplifying further:
y = 5x - 5.
So, the equation of the line in slope-intercept form is y = 5x - 5.
Learn more about slope-intercept form here:
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Mel works as a delivery person for Amazon. The graph shows a linear model for his delivery times on
different days.
(a) What is the equation of the line, first written in point-slope form and then written in slope-intercept
form? Show how you determined the equation.
(b) Based on the linear model, predict how long it initially took Phillip to deliver his packages.
Approximately how much did his delivery time decrease per day?
Answer:
Step-by-step explanation:
Equation of a line passing through (h, k) in point slope form is given by,
y - k = m(x - h)
From the graph attached,
Slope of the line passing through (6, 12) and (3, 21),
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
= [tex]\frac{21-12}{3-6}[/tex]
= -3
Therefore, point - slope form of the line passing through (3, 21) will be,
y - 21 = -3(x - 3)
Now convert this equation in slope intercept form,
y = -3x + 9 + 21
y = -3x + 31
(b). For x = 1 Or day 1
y = -3(1) + 31
y = 28 minutes
Therefore, Phillip took 28 minutes initially to deliver his packages.
Slope of the line states the decrease in the delivery time per day that is 3 minutes per day.
PLEASE HELP!!
Find the value of x
10 and 11!
Answer:
10)
11x-1+20x-3=151 (the exterior angle of an triangle is equal to the sum of two opposite interior angles)
31x-4=151
31x=151+4
31x=155
x=155/31
x=5°
11)
14x-13=4x+13+6x+2
14x-4x-6x=13+13+2
4x=28
x=28÷4
x=7°
HELP ME PLEASE!!!!!!!
Answer:
1. (0,0) (3,1) (6,2)
2. proportinal
3. im so sorry but i cant see that one i really am sorry!
Step-by-step explanation:
i hope i helped brainliest?
In a survey four out of seven people named blue as their favorite color. One out of three
named red IF 1,092 people were included in the survey, how many named neither blue nor red
as their favorite color?
Answer:
The answer is on the picture.
Step-by-step explanation:
The answer is on the picture.
Find the x and y intercepts of y=-x+6
Answer:
the X intercept may be -1 and yintercept no idea
HELP ASAP PLEASE ILL GIVE YOU BRAINLIEST AND A LOT OF POINTS!!
What is the slope of this table?
Answer:
I got 28
Step-by-step explanation:
I use the slope formula
[tex]\frac{y2-y1}{x2-x1}[/tex]
[tex]\frac{224-140}{8-5} =\frac{84}{3} =28[/tex]
what is 16 to the zeroth power
Answer: 1
Step-by-step explanation: Nice try :)
Answer:
1
Step-by-step explanation:
Anything to the 0th is 1
40 = x/-4/7 what is X
Answer:
x = -70
Step-by-step explanation:
PLEASE I NEED TO FINISH THIS!!
name:
a chord
a diameter
a radius
a minor arc
and a semi circle of the circle
A farmer is selling apples from his orchard. He uses the equation c = 1.6pto calculate the total cost, c, for every pound of apples, p.
a.) How much does a customer pay for 1 pound of apples?
b.) How much would 8.5 pounds of apples cost?
c.) A customer spent $5.20. How many pounds of apples did they purchase?
Answer:
A) $1.60
B) $13.60
C) 3 1/4 lb
Step-by-step explanation:
What we know:
A farmer uses the equation c = 1.6p to calculate the total cost, c, for p pounds of apples.
A) 1 pound would cost $1.60, as that is the unit rate.
B) 8.5 * 1.6
8.5 + (0.6 * 8.5)
8.5 + 5.1 = $13.60 for 8 1/2 lbs of apples.
C) 5.2/1.6
52/16
13/4 = 3 1/4 lbs of apple for $5.20
Will give Brainliest!!!
The ordered pair below represents a point on the line 3y + 4x = 5. Enter the missing y-coordiante for this point in the box.
(−14,?)
Answer:
(-1/4, 2)
Step-by-step explanation:
Substitute the given information into the equation and solve for y.
3y +4(-1/4) = 5
3y -1 = 5 . . . . . . simplify
3y = 6 . . . . . . . . add 1
y = 2 . . . . . . . . . divide by 3
(The other person who said -5 is incorrect and he gave no explination)
Jada has a meal in a restaurant. She adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00.
c) They actually pay $52.99. The additional $7 is a tip for the server. What percentage of the subtotal is the tip?
Answer: See explanation
Step-by-step explanation:
Your question wasn't well written but I saw an identical question so let me help out.
a. Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. When the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax?
b. They actually pay $52.99. The additional $7 is a tip for the server. What percentage of the subtotal is the tip?
a. Subtotal = $42.00
Tax = $3.99
Percentage of subtotal that is sales tax will be:
= Sales tax/Subtotal × 100
= 3.99/42.00 × 100
= 9.5%
b. Tip = $7
Sub total = $42
The percentage of the subtotal that is the tip will be:
= Tip/Sub total × 100
= 7/42 × 100
= 16.67%
4(c - 3)=8 What is the value of the C? i really need help, i will mark brainliest
Answer:
c = 5
Step-by-step explanation:
4 (c - 3) = 8
4c - 12 = 8
+12 +12
4c = 20
c = 5 Check:
4 (5 - 3) = 8
20 - 12 = 8, the answer is correct
Which statement about the solution of the inequality k less-than negative 3 and one-fourth is true? The number 7.1 is not a solution to the inequality because Negative 3 and one-fourth is located to the right of 7.1 on the number line. The number 0.9 is not a solution to the inequality because Negative 3 and one-fourth is located to the right of 0.9 on the number line. The number –3 is a solution to the inequality because –3 is located to the left of Negative 3 and one-fourth on the number line. The number Negative 8.4 is a solution to the inequality because negative 8.4 is located to the left of Negative 3 and one-fourth on the number line.
Answer:
D is your answer
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
Determine which of the following terms are not considered to be like terms with the expression -6s2t. Select all situations that apply.
( s2)( t)
10 ∙ s2 ∙ t
4( s ∙ t)
-6( s2 + t)
s2t
s2 ∙ t2
Please help I dont have much time
Answer:
[tex](s^{2})(t) , 10^{2}t, s^{2}t[/tex] are the correct answers
Step-by-step explanation:
The others don't work because they don't have the same power for each variable.
Answer:
It is s^2(t), 10 *s^2 * t, and (1/4) (s^2)(t)
(I’ll give brainliest)
Answer:
52.5n+449.85
Step-by-step explanation:
15 x (3.5n +29.99)
15x (3.5n) + 15 x (29.99)
52.5n + 499.85
unrelated but I just had this problem on a homework assignment on the same assignment. Cool coincidence am I right.
Can you help me solve this ?
Answer:
2
Step-by-step explanation:
Answer:
B: 9
Step-by-step explanation:
1/4(c^3 + d^2)
Plug in -4 for C and 10 for d
1/4((-4)^3 + (10)^2)
(-4)^3 = -64
10^2 = 100
1/4(-64 + 100)
-64 + 100 = 36
1/4(36)
= 36/4 = 9
9 is the final answer.
Overview
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Question Progress
Homework Progress
4/28
Expand and simplify (2x - 3)(3x + 4)
Answer:
6x²-x-12
Step-by-step explanation:
(2x - 3)(3x + 4)
6x²+8x-9x-12
6x²-x-12
Stephen Kiprotich, the 2012 Olympic marathon winner, completed the 26.219 miles in 128 minutes. What was his speed in kilometers per minute?
Answer:
0.205 (rounded)
Step-by-step explanation:
Perform long division by multiplying the numbers by 1000 to remove the decimals and then solving. Or you could have just used a calculator lol. So I did like 5 digits of it, and you could just round to 0.205, I wouldn't go too far with the decimals even though it is a terminating decimal I believe.
Answer:
it is b my guy :)
Step-by-step explanation:
What is the slope of the line through (0,-1) and (2,3)?
Pam read 126 pages of her summer reading bookin 3 hours. Zac read a180 pages of his summer reading book in 4 hours. If they continue to read at the same speeds, will they both finish the 215 page book after 5 total hours of reading?
Answer:
Zac will finish, Pam won’t
Step-by-step explanation:
Let’s have the individual reading speeds
The individual reading speeds are the number of pages divided by hours taken
For Pam; 126/3 = 42 pages per hour
For Zac; 180/4 = 45 pages per hour
In five hours, Zac would read; 45 * 5 = 225 pages
In five hours, Pam would read 42 * 5 = 210 pages
Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and baxterhas 3.5 yards of ribbon. Express the total length of ribbon the three friends have inches, feet, and yards.
Kevin walked Three-fourths of a mile in 12 minutes. Assuming he walked at a constant speed the entire time, which expression can be used to determine the distance he walked each minute?
12 divided by three-fourths
12 times three-fourths
Three-fourths divided by 12
Four-thirds divided by 12
Using the formula y=ab/2c, express: the variable c in terms of a, b, and y.
Answer:
aby/2 = c
Step-by-step explanation:
1) ab * y = ab/2c
2) aby/2 = 2c/2
Final answer: aby/2 = c
What is the average rate of change of f(x) = 5x – 7 from x = -3 to x = 7?
Answer:
[tex]f(x) = 5x - 7 \\ change = f(7) - f( - 3) \\ = ((5)(7) - 7) - ((5)( - 3) - 7) \\ = (35 - 7) - ( - 15 - 7) \\ = (28) - ( - 22) \\ = 50 \\ average \: change = \frac{change}{2} \\ = \frac{50}{2} \\ = 25[/tex]
The rate of change of function f(x) = 5x - 7 from x = -3 to x = 7 will be equal to 5.
A function f(x) = 5x - 7 is given which changes from x = -3 to x = 7.
We have to find out the average rate of change for the given function.
What is the average rate of change of function from [tex]x_{1}[/tex] to [tex]x_{2}[/tex] ?
The average rate of change of function from [tex]x_{1}[/tex] to [tex]x_{2}[/tex] can be given by a formula which is [tex]\frac{f(x_{1})-f(x_{2})}{x_{1} - x_{2}}[/tex].
As per the question ;
The function is f(x) = 5x - 7
So,
At x = -3
f(x) = 5 × -3 - 7
f(x) = -15 - 7
f(x) = -22
At x = 7
f(x) = 5 × 7 - 7
f(x) = 35 - 7
f(x) = 28
Let's use the formula to find average rate of change of function ;
i.e.,
= [tex]\frac{f(x_{1})-f(x_{2})}{x_{1} - x_{2}}[/tex]
= [tex]\frac{(28)-(-22)}{7-(-3)}[/tex]
= [tex]\frac{28+22}{7+3}[/tex]
= [tex]\frac{50}{10}[/tex]
= 5
Thus , the rate of change of function f(x) = 5x - 7 from x = -3 to x = 7 will be equal to 5.
To learn more about rate of change of functions click here ;
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